<template>
  <div class="article-page">
    <nav class="my-nav van-hairline--bottom">
      <a  :class="{ active: sorter === 'weight_desc' }" @click.prevent="changesorter('weight_desc')">推荐</a>

      <a  :class="{ active: sorter=== null }" @click.prevent="changesorter(null)">最新</a>
      <div class="logo"><img src="../assets/mj.png" alt=""></div>

    </nav>
    <van-list v-model="loading" :finished="finished" finished-text="没有更多了" @load="onLoad">
      <ArticleItem v-for="(item, index) in list" :key='index' :item="item" ></ArticleItem>
    </van-list>

  </div>

</template>

<script>
import { getAtricleList } from '@/api/user'
export default {
  name: 'article-page',
  data () {
    return {
      list: [],
      sorter: 'weight_desc',
      current: 1,
      loading: false,
      finished: false
    }
  },

  methods: {
    changesorter (value) {
      this.sorter = value
      this.list = []
      this.current = 1
      this.finished = false
      this.loading = true
      this.onLoad()
    },
    async onLoad () {
      try {
        const res = await getAtricleList({ current: this.current, sorter: this.sorter })
        this.list.push(...res.data.rows)
        this.loading = false
        this.current++
        if (this.current > res.data.pageTotal) {
          this.finished = true
        }
      } catch (error) {
        this.loading = false
      }
    }
  }
}
</script>

<style lang="less" scoped>
.article-page {
  margin-bottom: 50px;
  margin-top: 44px;

  .my-nav {
    height: 44px;
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    z-index: 999;
    background: #fff;
    display: flex;
    align-items: center;

    >a {
      color: #999;
      font-size: 14px;
      line-height: 44px;
      margin-left: 20px;
      position: relative;
      transition: all 0.3s;

      &::after {
        content: '';
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
        bottom: 0;
        width: 0;
        height: 2px;
        background: #222;
        transition: all 0.3s;
      }

      &.active {
        color: #222;

        &::after {
          width: 14px;
        }
      }
    }

    .logo {
      flex: 1;
      display: flex;
      justify-content: flex-end;

      >img {
        width: 64px;
        height: 28px;
        display: block;
        margin-right: 10px;
      }
    }
  }
}

</style>
